Aridom Guesthouse is a small 2-story townhouse on a quiet residential soi in the Ari neighborhood. The main floor has a large living/dining/kitchen area with a really nice TV, a huge dining table, and a kitchen setup. There is one bedroom with its own bathroom on the first level, accessible outside from the courtyard with its own key (the courtyard is gated and also locks with the keys provided). There's a small covered outdoor area with a washing machine and clothes drying racks. The upper level has 3 separate bedrooms and a shared bathroom, and there's also a bathroom on the ground level. Each bedroom, as well as the main living area, has its own mini-split AC setup, and they're all good and efficient ones with timers.
It's very close to the main soi and within a few minutes walk of the Ari BTS station. Within a 1 minute walk there are several lovely cafes with good food, as well as a 7-11 (not open 24 hours, but a 24-hour one is just a few more steps away). There are a ton of good restaurants and services, and the wonderful street market up near the station.
I stayed here with 3 friends for a week, and it was the perfect setup for us - convenient access for when we wanted to explore Bangkok (including driving our own car), and also really comfortable for relaxing at home when we needed a break. (A note for anyone thinking about cooking: the refrigerator is on the smaller side, but it was more than sufficient for our purposes, and there is an induction hot plate for stovetop cooking, along with a toaster, microwave, and electric kettle. In other words, it's a very normal and nice Thai kitchen, with the bonus of being indoors and air conditioned!)
I would absolutely rent this house again for a future stay when I wanted a comfortable, convenient place for several people to enjoy Bangkok together!